The city clerk is authorized, but not required, to mail to persons forms for applications for licenses, but failure of any person to receive any such forms shall not excuse the person from making application for and securing the license required and payment of the license fee when and as due herein. If any person fails, neglects or refuses to file his application and to pay the fee as and when required herein, the city clerk is authorized to determine the amount of fee payable and by mail to notify such person of the amount so determined. The amount so fixed shall thereupon be immediately due and payable subject to the person's right to appear before the city council and show cause why his fee should not be altered or reduced. (1984 Code § 3-1-12)